EP 1123167 B1 20020904 - DEVICE FOR ACCURATE POSITION CONTROL OF A FORCE-TRANSMITTING SYSTEM
Title (en)
DEVICE FOR ACCURATE POSITION CONTROL OF A FORCE-TRANSMITTING SYSTEM
Title (de)
VORRICHTUNG ZUR GENAUEN POSITIONSREGELUNG EINES KRAFTÜBERTRAGUNGSSYSTEMS
Title (fr)
DISPOSITIF DE CONTROLE DU POSITIONNEMENT PRECIS D'UN SYSTEME DE TRANSMISSION DE FORCE
Publication
Application
Priority
- EP 9908139 W 19991021
- NL 1010366 A 19981021
Abstract (en)
[origin: WO0023204A1] Device for accurate position control of a force-transmitting system comprising at least one solid-state piezo actuator (7), wherein the piezo actuator comprises a metal block (11) which is positioned between end plates (12, 13) and in the direction of the force has at least one duct (14) into each of which a stacked piezo element (15) fits, the height of the block (11) being shorter than the length of the piezo elements (15) and the difference in height corresponding to the shortening of the piezo elements (15) under the maximum permissible axial load acting thereon, and in that the piezo actuator is incorporated transversely to the direction of force, without play, in such a way into an element of the force-transmitting system that only a force in the axial direction of the ducts can be transmitted to the piezo elements.
IPC 1-7
IPC 8 full level
B21B 37/58 (2006.01); H01L 41/053 (2006.01); H01L 41/09 (2006.01); B21B 31/20 (2006.01)
CPC (source: EP US)
B21B 37/58 (2013.01 - EP US); H02N 2/02 (2013.01 - EP US); H10N 30/88 (2023.02 - EP US); B21B 31/20 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0023204 A1 20000427; AU 1043900 A 20000508; DE 69902801 D1 20021010; DE 69902801 T2 20030807; EP 1123167 A1 20010816; EP 1123167 B1 20020904; NL 1010366 C2 20000425; US 6373171 B1 20020416
DOCDB simple family (application)
EP 9908139 W 19991021; AU 1043900 A 19991021; DE 69902801 T 19991021; EP 99953948 A 19991021; NL 1010366 A 19981021; US 83002501 A 20010712